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Comparing vertical dimension changes with and without a face-bow transfer

A L Castle1, T H Anthony

  • 1Department of Dental Laboratory Technology Education, University of Texas Health Science Center, San Antonio, USA.

Journal of Dental Technology : the Peer-Reviewed Publication of the National Association of Dental Laboratories
|May 20, 1998
PubMed
Summary
This summary is machine-generated.

Skipping the face-bow transfer, which records the hinge axis, may lead to greater changes in vertical dimension during occlusal adjustments. Further research is needed to differentiate these changes from technical errors.

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Area of Science:

  • Dental prosthetics
  • Occlusion
  • Craniomandibular mechanics

Background:

  • Accurate vertical dimension is crucial for successful denture fabrication and function.
  • The face-bow transfer, recording the kinematic face-bow (hinge axis), is a standard procedure in prosthodontics.
  • Potential variations in vertical dimension may arise from procedural differences in occlusal record-taking.

Purpose of the Study:

  • To determine if omitting the face-bow transfer influences vertical dimension changes in occlusal adjustments.
  • To compare the magnitude of vertical dimension change between procedures with and without face-bow transfer.

Main Methods:

  • Two experimental demonstrations were conducted to assess occlusal changes.
  • One demonstration involved a face-bow transfer (hinge axis recording), while the other did not.
  • Vertical dimension changes were measured and compared between the two demonstrations.

Main Results:

  • Both demonstrations exhibited changes in vertical dimension.
  • A greater degree of vertical dimension change was observed in the demonstration where the face-bow transfer was omitted.
  • The significance of these changes relative to normal technical error requires further investigation.

Conclusions:

  • The omission of a face-bow transfer may be associated with increased vertical dimension changes during occlusal adjustments.
  • Clinicians should consider the time investment for face-bow transfers versus potential chairside occlusal correction time.
  • Further research is essential to quantify the impact of technical error versus procedural omission on vertical dimension stability.